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• How to select the last 2-element group by a topic_id in MySQL

  - by Luca Romagnoli

  Hi i have to select the 2 lastest element for every topic ex: table: msg id | topic_id ----------- 1 | 1 2 | 1 3 | 1 4 | 1 5 | 2 6 | 2 7 | 2 8 | 3 9 | 3 10 | 3 i want obtain these rows: 3 1 4 1 6 2 7 2 9 3 10 3 How can i do? thanks

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• Windows workflow foundation published as a web service and Sql Service persistance

  - by wissem

  Hi i try to add persistance to my workflow using sql service persistance and all i know is how to add Persistence Service to the Workflow Runtime using code in the host app but what if i have the workflow as web service how can i add persistance..??? Thanks

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• Clean multiple JTextField

  - by redmarv

  Hi all! I was wondering about how to clean multiple JTextField in a Java applicatio, without setting the text with an empty string for each field. Any suggestions?

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• Jquery select events

  - by patxi1980

  Hi everyone, i am working with a select. I want to trigger and event when the user select a value. I am using the event "change", the problem is that if a user open the select but choose the same option that is selected, the triggers doesn't fire. Is there a way to capture the event when a user select an option independently if the option is the same than is the one that was selected? thanks.

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• Localhost doesnot work.

  - by Muhammad Sajid

  Hi, I installed wamp server on xp. During the installation it did not show any error/warning message. Then i start it & type http://localhost/ in url bar but it just show a blank page. I also checked notepad C:\WINDOWS\system32\drivers\etc\hosts their is no restriction for localhost. Help. Thanks...

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• multiplying big numbers using recursion and array

  - by persian Dev

  hi friends. I am supposed to write and algorithm which uses recursion (Divide-And-Conquer) to multiply two arrays.These arrays hold big Numbers that are greater than long(int 64) or double capacity. Would please help to write this algorithm in C#?

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• how to connect j2me application with gtalk

  - by Rishabh

  Hi, I have created a login page on mobile. after login with google username and password, i want connect it with g-talk. I need to see my all gtalk contacts on mobile application. How I authenticate and get contacts here, Is there any web service url for user authentication ? Please help me!

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• NHibernate - ISession

  - by Guilherme Cardoso

  Hi About the declaration of ISession. Should we close the Session everytime we use it, or should we keep it open? I'm asking this because in manual of NHibernate (nhforge.org) they recommend us to declare it once in Application_Start for example, but i don't know if we should close it everytime we use. Thanks

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• How to call a view on click of each UITableViewCell programatically?

  - by Cathy

  Hi, I have created a UITableViewcontroller and a UINavigationController in a TableController.m with UITableviewCell set to say @"CellOne" @"CellTwo". Now i also created two other files `ImageView1.m` ImageView2.m where if i click on CellOne i should be able to get the view placed on ImageView1.m, same applied to the ImageView2.m.How should i achieve this programatically without using nib file?

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• Facebook app invite from inside the app

  - by lollertits

  Hi, i want to make a facebook flash app. Now im trying to make it possible to invite your friends to the app. I want to do this from within actionscript without the user having to leave the app. The ideal solution would be to make a custom interface show possible invites and then doing some URL request containing the friends id's Anyone have any idea how to solve this or if its even possible ?

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• using ansi sql syntax for formatting Numeric

  - by changed

  Hi I am using two different databases for my project. Oracle and apache derby and trying to use as much as possible ansi sql syntax supported by both of the databases. I have a table with column amount_paid NUMERIC(26,2), in a table. My old code which was using oracle db need to retrieve value in this format SELECT LTRIM(TO_CHAR(amount_paid,'9,999,999,999,999.99')) . How can i do this using ANSI sql syntax.

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• Workflow State not changing in asp.net

  - by shail

  hi i m trying to change the state for workflow from one state to another on button click its working fine with windows but not with web application and its instance id does not persist i have used SqlWorkflowPersistenceService also. what can b the solution for this. thanks

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• Using HTML Canvas for UI elements?

  - by Tower

  Hi, I have a couple of UI elements such as buttons in my web application. I was going to use CSS3's transitions to animate the transition from one background-image to another. I figured out that it's not possible with the current transitions draft at least. So, I was wondering if it would make sense to use Canvas as the button. I'm sure it can handle events, so, I see no problems here. Are there any?

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• Simple WCF service with REST - Resource cannot be found - error with ASP.NET Debug Server?

  - by lesasch

  Hi, I'm testing a very simple WCF-Service with REST functionality enabled. It works fine on IIS, but the VS2010 debug webserver always says "The resource cannot be found" when appending the parameter after the .svc file in the browser uri. Is this a known issue with the asp.net debug webserver that it cannot work with REST or am I doing anything wrong? (again: with IIS, it works)

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• What is the best script language for n/w programming + web development

  - by Mohanavel

  Hi, I'm interested in developing web application and networking application. For that what is the best script language to learn. Which one is effective for this two. So for, i don't know even a single syntax of any scripting language. Which is the best script for understanding, maintainable, effective and simple (may not). Please don't say what are all you know. Please tell me the best

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• Double to scientific notation in java

  - by Daniel G. R.

  Hi everyone, I have a double number like 223.45654543434 and I need to show it like 0.223x10E-3 for example, how can I do it in java???????? URGENT!!!!!!!!!!! thanks!

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• How do I generate site map from MySQL database

  - by mathew

  Hi all I am new to Php and working on a project which needs to generate sitemaps from URLS which stored in MySQL database. how can I do this?? Is there any one have any idea?? site maps can be in php extension too and only requirement is list of sites display in each page

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• how to call javascript from php

  - by Jayjitraj

  HI I want to execute one script within my php and that javascript will give me output as HTML and i want to display that output but i want to do this all within PHP so please tell me which function should i use Thanks in advance :)

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• ctypes buffer modification

  - by Chris

  Hi, I need to call a c library from my python code. The c library does a lot of image manipulation, so I am passing it image buffers allocated using create_string_buffer. The problem is that I also need to manipulate and change these buffers. What is the best way to reach in and twiddle individual values in my buffers? The buffers are all uint8 buffers. Thanks!

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• How to remove hanging start up application (windows mobile)?

  - by afriza

  Hi, I am developing a native application for Windows Mobile 6.5 (Samsung Omnia II i8000). After making some changes, my application hangs when it is run. The problem is my application is also run during Start Up (via \windows\startup shortcut) and whenever I restart the phone, it'll always run my application and hangs there. ActiveSync is not connected yet (I'm using WinXP,VS2005), so I cant use pdel from itsutils. Anyone has any Idea how to solve this?

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• progress view stop button listener

  - by Norbi

  Hi! I develop an eclipse plugin and I added an eclipse progress view to it. There is an stop button on the progress view and I want to create some kind of listener to handle the events of the chancel button, but I don't know how I can do it. I know the monitor has an isChancel() method, but I have to create come kind of listener to listen when user clicks the stop button, while the plugin works. Please give me some advice. Thanks Example: link text

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• Open a popup window

  - by Gins

  Hi, Can i open a new window after execution of some code(ie at some point of time before completion i need to open a new window in zend.Can i do this? Also how can i check the size of a remote file. Thanks in advance.........

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• Is there any tool like MaintainJ for IntelliJ

  - by Philippe

  Hi, I just tested MaintainJ Eclipse plugin and I find it very useful for reverse engineering sequence diagrams. However, I use IntelliJ in my projects so I was just wondering either a similar plugin exists for my favourite IDE. Thanks !

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• ArrayList & contains() - case insensitive

  - by anselmophil

  Hi! I want the contains() method from ArrayList to be case insensitive. Is there any way? Thanks

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• Countdown timer in asp.net

  - by Zerotoinfinite

  Hi Experts, I am using asp.net 3.5 with C#. I want to create a countdown timer and my requirement is like this: Countdown end date: June 16 2010 So, till June 16 comes my timer will show the remeaning time. Please let me know how to achieve it, I google it but i didn't get the excat solution to my problem. Thanks in advance.

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